<!DOCTYPE html>
<p>There should be a blue <em>square</em> below.</p>
<div id="elm" style="width:17em; line-height:4em;">
    <div style="margin-top:100px; margin-left:1em;">
        <div style="background:blue;">&nbsp;</div>
    </div>
    <div style="margin-left:1em; background:blue;">
        <br>
        <br>
        <br>
    </div>
</div>
